US 101 over Mud Bay

Fair Condition68 years old21,984 vehicles/day

Location

StateWashington
CountyThurston
Location1.3 S Jct SR 8
CarriesUS 101
CrossesMud Bay
Coordinates47.04503, -122.99100

Condition Ratings

Overall ConditionFair
Deck6 (Satisfactory)
Superstructure7 (Good)
Substructure7 (Good)
Channel/Waterway8 (Very Good)
Scour Critical8 — Stable, low risk

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length290.0 ft (88.4 m)
Max Span40.0 ft (12.2 m)
Deck Width34.1 ft (10.4 m)
Deck Area919.4 sq m
Main Spans8
Year Built1958

Traffic

Avg Daily Traffic21,984 (2023)
Truck Traffic6%
Lanes On Bridge2

Inspection & Ownership

Last Inspection424
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Structure Number0005677A0000000

Nearby Bridges

US 101 over Mud Bay 0.0 mi Fair Mud Bay Road over Mud Bay 0.1 mi Good 2nd AVE SW over US 101 0.2 mi Good Delphi RD over US 101 0.5 mi Fair Madrona Beach Road over Perry Creek 0.7 mi Fair US 101 over Perry CR 0.7 mi Good US 101 over Perry CR 0.7 mi Fair Old HWY 410 over Perry Creek 0.7 mi Good Evergreen Parkway over Mud Bay Road 0.9 mi Fair Delphi Road SW over Mclane Creek 0.9 mi Good